Spring scale



June 20, 1950 Filed June `8, 1945 l.. voN csEH SPRING scm:

y4 Sheets-Sheet 1 ATTORNEY.

L. voN csEH June 20, 1950 SPRING SCALE n 4 Sheetsheet 2 I Filed June 8,1945 mvENToR. fvg' 3 3111's /zz C'selz ATTORNEY.

June 20, 1950 L. voN csEH 2,512,187

SPRING scm: Filed June e, -1945 4 Sheets-Sheet 5 Imw" MMIII I l l lPARCEL Pos1 l i l AIR MALL l l l LETTERS z! ls'f f INVENTOR. ,fouls V012Cre/1 ATTORNEY.

L. voN csEH 2,512,187

SPRING SCALE June 20, 1950 Filed June 8, 1945 4 Sheets-Sheet 4 IN VENTOR.

l: 0111's Vaal? GSH/7 ATTORNEY.

Patented June 20, 1950 UNITED STATES PATENT [oFFIcE Louis von Cseh, NewYork, N. Y., yassigner Iso- Speed. Products Company, Inc., Long Island.City, N. Y., a corporation of New vvYork Application Jungs'. 1945,serial No.59a2c2 (c1. 26a- 68)` v 10 Claims.

l The invention is a measuring device and more particularly is concernedwith a weighing scale particularly adapted for oilice use; The object ofthe invention is realized in the provision of va functionally andstructurally improved and novel f scale wherein a rectilinearly guided,spring controlled and normally elevated plunger carrying a loadingplatform embodies means'for actuating a rotatable member bodily carryingan indicia; carrying drum adapted tov be displaced before indicating`means of 'a casing enclosing the ro`" tatable drum in proportion'tothe'load applied to the platform and against the resistance oi' anappropriate spring which normally holds the platform elevated.` Theinvention has as a further Vobject the provision of a postalscalewherein the rectilinear motion of the plunger is translated into arotary motion for causing the rota tional displacement of the indiciacarrying drum about its vertical axis. A further object is concernedwith the utilization in a postal scale of a rotatable and easilyaccessible stamp moistening means. Other objects, advantages and salientfunctional and structural features of the invention will be moreyreadily understood from the following detailedfspeciiication consideredin the light of the accompanying drawings wherein:

Fig. 1 is afrcnt view of the 'scale according to my invention.

. Fig.2 is a plan view of Fig. l.

` Fig. 3 is a sectional view on the line 3-3 of Fig.v 1.

I" Figs. 4 and 5 are' sectional views on the 4-4 and 5-5 respectively ofFig 3.

Fig. 6 is a perspective view of the slidable sleeve or plunger.

Fig. '7 is a perspective view of the xed guide for the slidable plunger.

Fig. 8 is a side elevational view of another embodiment according to myinvention.

I Fig. 9 is aplan view of Fig. 8. 1

Fig. 10 is a sectional view on the'line Ill-I0 of Fig. 9.

Figs. 11 and 12 aresectional views on the lines I I-II and i2-I2respectively of Fig. 10.

Fig. 13 is a fragmentary view of Fig. 10, however, illustrating theplunger carrying platform fully depressed,l and Fig. 14 is a sectionalview on the line M--II of Fig. 12.

In the form according to Figs. 1-7 the scale is generally-denoted S andcomprises the circular base I appropriately flxedly sustaining thefrusto conical and hollow yshellor casing il having an upper inwardlydisposed annular nange I2 to lines which are affixed by' screws I3 thesuperimposed and concentrically arranged annular discs I4 and I5, thelatter having-an annular channel I6 receiving the 4radially arrangedends or lugs I'I of the cylindrical spring-holder or cup I8. Screws I9vfasten the three lugs I1 in the channel I6 of the upper annular discI5. v By this arrangement, the springholder I8 is firmly fastenedrelative to the hollow casing or shell II.v

Closely surrounding'theiixedy spring holder or support' I 8 is thecylindrical and rectilinearly displaceable tube or plunger 20 providedwith the spaced slots 2l, the sides of which closely but movablystraddle the iixed` radial lugs I'I of the spring holder or cup I8.

Fixedlyfsecured tothe slotted tube 2i) is the loading platform orarticle support 22 from which depends the coaxially arrangedstud 23surrounded by the upper endof the normally expanded helicoidal spring 24disposed in part within the slidable tube or plunger 2U and in part isconfined in' the fixed cup or holder i8. Normally therefore theAplatform is elevated as shown in the full line position in Fig. 3 atwhich time the end walls 24 of slots 2i are against the lugs Il whichcharacterize stop means for .limiting upward rectilinear displacementof' the platform carrying plunger.

Rectilinear displacement of the slidably guided plunger- 20 is utilizedto impart a rotary motion to the; worm or driven member 25 having aspheroidal or anti-friction member 26 rotatably rctained in socket orstub shaft -2'I extending from one end ofthe worm l'25. Thisanti-friction member 26.is journaled'in the bearing or recess 28 inthebottom wall of the linedl spring holder or cup I8. Y

The Worm or driven member 25 has its lower end seated on and rmlysecured on the bottom wall 3l)` of the graduated indicia bearing frustoconical hollow drum or dial 3|. Speciiically, worm 251s provided with areduced cylindrical portion or stub shaft -32 iitting into opening 33 inthe bottom wall 30 and also includes a threaded dependingextensionv34terminating in a socket rotatably conning the anti-friction spheroidalmember 3S seated in the notch or bearing 3'! in the adjustable plug 38threadably carried by the base Il).` v

- Surrounding the-threaded extension 34 is a spring washer 39 tightenedagainst the bottom wall 3|] of the graduated dial 3I by the internallythreaded nut or clamping means 4I). By this arrangement the worm isadjustably and removably although i'lxedly fastened tothe drum or 3 dial3l, and hence if the worm 25 be rotated b the reciprocable tubularplunger 20, the graduated drum 3| revolves about its vertical axis.

The reciprocable plunger 20 rotatably carries three anti-friction yballsor spheroids 4| coacting with the walls of the helical groove 42' of theworm 25. Consequently if theplunger 2l] is actuated the 'spheroids drivethe worin -or in other words, the worin is rotated. Since the graduateddrum 3| is fastened to the stub shaft 32 of the worm, it will bodilyrotate relative tothe shellor casing Il which embodies a window 42 and..1

68 would cause the worm to be actuated about includes appropriatedesignations or indicia s uch rotary drum 3| to designate with th'eaidof the indicators or pointers 46 and 41 i extending'fromI` the casingand inwardly of the opening orwindow and l5 against theresistaefoff-tlienormally exl panded spring "24. 'Byf is "atintheworm"25 is rotatably driven and VTthe graduated 1di'rnf'o'i' dial 3| isrevolved or displaced-iin proportion 'to the load applied fon vtrieplatform arid'the readings of the 'weightiof thell'oad andposterohargesmay be readily obtained, Dwwadfdisplacement of the plunger 120 is"limited wle "the "annular flange 473 strikes "the btt'rn "'w'all "30 lofthe graduated drun 3|.

In the form iuusttatedir'ge. sito 14, the'bottomwa'll 30 oftherotatabreandfgraddated"drum or dial 3| hasaojopergisnFthrodgh'fwniehitne threaded sirank 5| troiette dnd-'abbot'the flatter is disposed the spring 'washerZ and-internally Fixedlyanchored to the rods 6| in any appropriate manner is the disc 69 servingas a bearing for the shaft portion 1i! of the worm 1| which has itslower shaft portion 5l rotatably guided in the lower disc 59 of theinner cage 6G.

The worm |I may be said to have a helically arranged groove 'H2 in meshwith the single tooth 7 1'3 of the lower `slidably 'and rectilinearlyguided disc 640i the outer cage. Hence if the outer cage isrectilinearly displaced relative to the inner cage,

tooth 13 actuates the worm and the latter is rotated. Or in other Words,a load on the platform its vertical axis.

-Sih'ce ltheb'ct'tm wall 3|! of the graduated 5 2- and adjustable nut 53against the stub shaft 51 of the worm-1 l, the drum 3| is thereby bodilyrotated with the worm when actuated or driven by the outer sldable cage.

fNormally-the'outer cage is held elevated bythe disc'tz ofthe'inner'cage upon the manipulation threaded clampingnutfES. shank 5|li'sprovided with e pointed terminal `revoit'abiy seated on vtheadjustable 'and threaded bearing Tor :piu-g 5'4 'inthe bottom :wanorfbaseiss itemorably tonnected to the casing 5S.

jshank '5| depende `from fthe fs'ttbfsnafft 51 rotatebiy mounted'1n-'the 7ooe m sa or the 'flower dise A'59 of an zinner cage ige 1y'-denotedeo posts es width pro/eet 'through vandare leiidebiy guided inopenings fof Ythe closure o'r closure disc 63 and to the yupper portions"of "the'seposts E5 is anchored the 'articlereceiving 'platform 68. lSythis arrangement, the outer slidable cage defined by the slidablyl*guided "disc 1N, `th`e 'outer posts 66 anchored the'reto, 'andthe'plat'fdrin fastened tothe posts, in'ayibe bodily Edisplaced vrelativeto'theinner Vcag'e'lll comprising tl'ie'lower upper' disc |52.

off-the adjustable threaded 4member *64* It follows that the lower'fend'of the spring 714 y-isfastened 4to the lower -end Ylof theslidably'guided outer/cage 'while its-upper end is fastenedb'y the inner'cagefagainst theclosuredisc63. `If therefore 'theeouter'cagevwhich maybe considered as a plunger vis displaced'fdownwardlydue'rto a 'loadorrpla'tformv idspring T4 which is 'norn'ially vcontracted; expands,for` example, fin Fig. lyspring 1 tfiss'hown fully` expanded and'tl'ieplatform Ahas reached its maximum idepression, :being resisted againstfurther I`downward displacement when the annular disc 64 of the outerslidabl'ecage' strikes the lower di`sc`5`9 'ofthexed inner c'a'ge. 'Ofcourse "a lighter load'o'nthe platform would only partly expand thespring. However, 'i'onc'e the treading is made 4^and -the l'ad is`'renlov'ed from the platformspringTdfautomatically raises the outer"sli'dable zcageor 'plunger and thus its platform e8 and the graduateddrum is 'restored to fitsfzero reading asis welliunderstood The extentof rotatable displacemnto'f the graduated drum'l mayfber'ead bytlie'aidlof the alined and "pointed extension or' indicators 83 and 84 along theboundary of'the fwin'do'w or openingdZin'the casing or housingSB'whichincludes a recess 85 closely confining the liquid containing v'receptaleT66 provided with the `alined and hollo'w ribs 8"! defining 'shoulders8Dto positionand removablysustainthe'alined stub shafts el "of thev'frusto conical rotatable `moistening member or roller 32, ribs81`s`erving a'sve'rtical guides forl'eading tl'iestub shafts 8| totheshoulders or bearings 80. By this arrangement, the 'moistening roller'or liquid "pick up 82 may be `readily removed from "the receptacle.Therefo'rethe receptacle may be"`re'adily"supplied withasuitableiiduidgisuohias detergenti' subsequently Y therndistening.fnremuer1caubey reedilymounted in the receptacle, the latterbeing also removably;

mounted in therecess 85 which merges vertical grooves 88 for removablyguiding the spaced ribs 81. l x

Various changes may be made in details of construction and arrangementof parts without departing from the spirit of the invention orsacrificing any of the advantages thereof inherent therein.

Iclaim:

1. In a scale, a hollow circular casing having an opening, a base forsustaining said casing, bearing means carried by said base, closuremeans securedto said casing, a support projecting into said casing andhaving spaced arms sustained by said closure means, a plunger closelybut movably surrounding said support and yhaving slotted means linearlyguided by said'arms, a loading platform carried by said plunger, a wormhaving alined shaft means journaled in said support and tatably drivingthe latter upon linear displacement of said plunger, and an indicacarrying drum fastened to said worm and bodily rotatable therewith.

2. In a scale, a hollow circular casing having an opening, a base forsustaining said casing, bearing means carried by said base, closuremeans secured to said casing, a support projecting into said casing andhaving spaced arms sustained by said closure means, a plunger closelybut movably surrounding said supporty vand having lslotted meanslinearly guided by said arms, a loading platform carried by saidplunger, a Worm having alined shaft means journaled in said bearingmeans and support, spring means interposed between said support andplatform for normally holding the latter elevated, means projecting fromsaid plunger and cooperating with said Worm for rotatably driving thelatter upon linear displacement of said plunger, an indicia carryingdrum concentrically-disposed within said casing and fastened to saidwirm and bodily rotatable therewith, indicator means for determining theextent of rotational displacement of said drum before said opening, andmeans on said plunger to limit linear displacement thereof.

3. In a scale, a hollow circular casing having an opening, a basefixedly sustaining said casing, bearing means carried by said base,annular closure means secured to said casing, a cup projecting into saidcasing and having spaced and radi-ally disposed arms sustained by saidclosure means, a plunger guided by said closure means and closely butmovably surrounding said cup and having slotted means linearly guided bysaid arms, a loading platform carried by said plunger, a worm havingalined shaft means journaled in said bearing means and said cup, springmeans interposed between said cup and platform for normally holding thelatter elevated, means eX- tending from said plunger and cooperatingwith said worm for rotatably driving the latter upon linear displacementof said plunger, an indicia carrying circular drum fastened to saidworm' and bodily rotatable therewith, and indicator means fordetermining the extent of rotational displacement of said drum beforesaid opening.

4. In a scale, a hollow circular casing having an opening, a base forxedly sustaining said casing, bearing means carried by said base,annular closure means secured to said casing, a

cup projecting into said casing and having spaced arms sustainedby saidclosure means, a plunger surrounded by said closure means and closelybut movably surrounding said cup and having slotted means linearlyguided by said arms, a loading platform carried by said plunger, a wormhaving alined and vertically arranged shaft means journaled in saidbearing means and said cup, spring means interposed between said cup andplatform for normally holding the latter elevated, means extending fromsaid plunger and cooperating with said worm for rotatably driving thelatter upon linear displacement of. said plunger, an indicia carryingdrum revolvable about its vertical axis and fastened to said worm andbodily rotatable therewith, and indicator means for determining theextent of rotational displacement of said drum before said opening.

5. In a scale, a circular cylindrical casing having an opening, a basefor sustaining said casing, adjustable bearing means carried by saidbase, closure means secured to said casing, a cup projecting into saidcasing and having spaced arms sustained by said closure means, a plungerclosely but movably surrounding said cup and having slotted meanslinearly and slidably guided by said arms, a loading platform carried bysaid plunger, a worm having vertically alined shaft means journaled insaid cup and bearing means, helicoidal spring means interposed betweensaid cup and platform for normally holding the latter elevated, meanscarried by said plunger and cooperating with said worm for rotatablydriving the latter upon linear displacement of said plunger, a hollowcircular indicia carrying drum revoluble about its vertical axis andremovably fastened to said worm and bodily rotatable therewith, andindicator means for determining the extent of rotational displacement ofsaid drum before said opening.

S. In a scale, a base, bearing means carried by said base, a hollowcasing secured to said base and having an opening, closure means securedto said casing, a circular indicia carrying drum concentrically disposedwithin said casing, a cage within said casing, means securing said cageto said closure means, bearing means carried by said cage, a memberhaving helicoidal grooved means and including alined shaft meansjournaled in both of said bearing means, means for bodily securing saiddrum to said member, a platform carrying plunger having means slidablyguided by said closure means and including means for interlocking withsaid grooved means for rotating said member upon linear displacement ofsaid plunger to revolve said drum across said opening, and spring meanssecured to said plunger and to said closure means for resisting therotation of said member and for normally holding said platform elevated.

'7. In a scale, a base, bearing means carried by said base, a hollowcasing secured to said base and having an opening, closure means securedto said casing, and circular indicia carrying drum concentricallydisposed within said casing, a cage within said casing, means securingrsaid cage to said closure means, bearing means carried by said cage, amember having helicoidal grooved means and including alined shaft meansjournaled in both of said bearing means, means for bodily securing saiddrum to said member, a platform carrying plunger having means slidablyguided by said closure means and including means for interlocking withsaid grooved means forgrotating Isaid^member upon. linear displacementof said -plunger-to"revolve'said drum across said: opening, -springmeans :secured to vsaid plunger and-to said closuremeans for resistingthe rotation of said member yand :for normally holding said platformelevated, and means to limit rectilinear displacementfof said plungerrelative to said casing.

8. In a scale, a base, bearing means carried by saidv base, ahollowcasing secured to said base. and having an opening, closuremeanssecuredY to said' casing, -a ycircular indicia carrying drumconcentrically disposedy within said casing,

a cage -within said casing, means adjustable se-v curing said cage tok'said closure means, bearing means carried by said cage, a memberhaving` helicoidal grooved means and including alined shaft meansjournaled in both of said bearingV means, means for bodily securing saiddrum to said member, a platform carrying plunger having means slidablyguided'by said closure means and including means for interlocking withsaid grooved means forrotatingsaid member upon linear displacement ofsaid plunger'l to revolve said drum across saidfopening, and a normallycompressed'helicoidal spring means interposed between said'plungerandclosure means for resistingthe rotationof said member and for normallyholding said platform elevated, and means clamping a portion-ofsaid-spring to said Aclosure means and plunger.

- 9. In a scale, a base, bearing. means carried by said base, a hollowcasing secured to said base and having an opening, closure means securedto said casing, a circular indicia carrying drum concentrically disposed`Within said casing, a cage within said casing, means securing said cageto said closure. means, stopmeans xedly carried by said cage, a memberhaving helicoidal grocved means and .including alined :shaft meansjournaled in said bearing meansv and .stop means, means for bodilysecuring said drum to said member, aV platform carrying plunger havingmeans slidably guided-bysaid closure means and including means forinterlocking with said grcoved means for rotating said member uponlinear displacementr of Said plunger to revolve said drum across saidopening and helicoidal spring means in part surrounding said cage and 8lsecured tonsaidplungerand'to.'said closure means for-,'resistingtthe`rotation :.fof. said member andY fiorinormally holding saidiiplatformelevated;

10. In a scale, a base, bearing means carriedV by said basa'ahollow-casingsecured'to said base andlhaving anopening, closure meanssecured to, said' casing, a circular indicia carrying drumconcentrically disposed'within said" casing, a cage within said casing,means securing said cage to said closure means, fixed bearing meanscarried by'saidcaga'a member having helicoidalY grooved meansandincluding alinedIshaft means journaledzin both@ of v`saidbearing ymeans,detachable clampingxmeans forn bodily rsecuring said drumv to'saidumember, a platformy carrying plunger slidablygguidedby said closuremeans-and includingmeansifor; interlocking vwitlrsaid grooved means forrotatingA lsaid member upon linear displacementof said'plunger Atorevolvesaid drum across :said openingand` spring means vsecured tosaidplungerand tosaid closure means for counter balancing the rload'applied to said platform member and for-normally holding Said platformlelevated.-

' LOUIS von CSEI-I.

The following references are of record in the nle of this patent:

UNITED STATES PATENTS Number Name Date Re. 16,323 WeberY Apr. '13, 1926809,826 Lorentzen- Jan. 9, 1906 978,204` Prouty Dec. 13, 1910 1,127,165`BergerA Feb. 2, 1915 1,210,382 Weber Dec. 26, 1916 1,295,258 Becker Feb.25, 1919 1,412,350 Jones Apr. 11, 1922 1,772,277 v Carlson' Aug'. 5,1930 1,895,863 PollakV Jan. 31, 1933 y FOREIGN PATENTS Number .CountryDate 30,352` Norway Jan. 8, 1919 86,750 Switzerland Oct. 1, 1920 182,111Switzerland Apr. 1, 1936 251,621 Germany Oct. 4, 1912 329,915 GermanyDec. l, 1920

